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TNDM
Tandem Diabetes Care, Inc.
stock NASDAQ

At Close

Sep 30, 2026 3:59:53 PM EDT

16.31USD-1.569%(-0.26)2,198,738

14.06Bid 18.72Ask 4.66Spread

Pre-market

Sep 30, 2026 9:28:30 AM EDT

16.62USD+0.302%(+0.05)13,572

After-hours

Sep 29, 2026 4:36:30 PM EDT

16.60USD+0.121%(+0.02)0

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Jan 15, 2027 Feb 19, 2027 May 21, 2027

ITM/OTM for Oct 16, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
134	96	75	252

TNDM Oct 16, 2026 Exp. - Volume by Strike

Puts

Calls

TNDM Oct 16, 2026 Exp. - Open Interest by Strike

Puts

Calls

TNDM Oct 16, 2026 Exp. - Max Pain @ $16.00

Puts

Calls

TNDM Oct 16, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
31 C	0.05	0%	1	1	09-25	TNDM261016C00031000
30 C	0.25	0%	2	2	08-31	TNDM261016C00030000
29 C	0	0%	0			TNDM261016C00029000
28 C	0	0%	0			TNDM261016C00028000
27 C	0	0%	0			TNDM261016C00027000
26 C	0	0%	0			TNDM261016C00026000
25 C	0.90	-29.13%	4	12	09-01	TNDM261016C00025000
24 C	0	0%	0			TNDM261016C00024000
23 C	0	0%	0			TNDM261016C00023000
22 C	0.20	0%	19	19	09-21	TNDM261016C00022000
21 C	0.30	0%	1	1	09-21	TNDM261016C00021000
20 C	0.05	-90.00%	6	4	09-22	TNDM261016C00020000
19 C	0.30	-40.00%	5	13	09-28	TNDM261016C00019000
18 C	0.50	-33.33%	14	21	09-29	TNDM261016C00018000
17 C	0.40	-11.11%	1	23	09-29	TNDM261016C00017000
16 C	0.90	-11.76%	110	117	09-28	TNDM261016C00016000
15 C	1.10	-62.71%	16	17	09-24	TNDM261016C00015000
14 C	0	0%	0			TNDM261016C00014000
13 C	0	0%	0			TNDM261016C00013000
12 C	0	0%	0			TNDM261016C00012000
11 C	0	0%	0			TNDM261016C00011000
10 C	0	0%	0			TNDM261016C00010000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
31 P	8.90	0%	10	10	08-31	TNDM261016P00031000
30 P	0	0%	0			TNDM261016P00030000
29 P	0	0%	0			TNDM261016P00029000
28 P	0	0%	0			TNDM261016P00028000
27 P	0	0%	0			TNDM261016P00027000
26 P	0	0%	0			TNDM261016P00026000
25 P	0	0%	0			TNDM261016P00025000
24 P	0	0%	0			TNDM261016P00024000
23 P	0	0%	0			TNDM261016P00023000
22 P	0	0%	0			TNDM261016P00022000
21 P	2.10	+23.53%	1	3	09-04	TNDM261016P00021000
20 P	3.50	+79.49%	1	22	09-23	TNDM261016P00020000
19 P	2.11	+40.67%	1	1	09-11	TNDM261016P00019000
18 P	0	0%	0			TNDM261016P00018000
17 P	1.02	+2.00%	1	39	09-22	TNDM261016P00017000
16 P	0.86	+16.22%	2	109	09-29	TNDM261016P00016000
15 P	0.45	-25.00%	1	143	09-29	TNDM261016P00015000
14 P	0	0%	0			TNDM261016P00014000
13 P	0	0%	0			TNDM261016P00013000
12 P	0	0%	0			TNDM261016P00012000
11 P	0	0%	0			TNDM261016P00011000
10 P	0	0%	0			TNDM261016P00010000

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